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Fencer Vulns
critical 9.1

CVE-2023-33220 json

Stack Buffer Overflow when checking some attributes during retrofit

published 2023-12-15 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-37390

cvss
9.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

During the retrofit validation process, the firmware doesn't properly check the boundaries while copying some attributes to check. This allows a stack-based buffer overflow that could lead to a potential Remote Code Execution on the targeted device

Patch / fix

  • IDEMIA SIGMA Lite & Lite + 4.15.5
  • IDEMIA SIGMA Wide 4.15.5
  • IDEMIA SIGMA Extreme 4.15.5
  • IDEMIA MorphoWave Compact/XP 2.12.2
  • IDEMIA VisionPass 2.12.2
  • IDEMIA MorphoWave SP 1.2.7

Exploit prediction

1.14% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • IDEMIA SIGMA Lite & Lite +
  • IDEMIA SIGMA Wide
  • IDEMIA SIGMA Extreme
  • IDEMIA MorphoWave Compact/XP
  • IDEMIA VisionPass
  • IDEMIA MorphoWave SP

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.